<template>
  <div class="app-container">
    <!--顶部Header 区域-->
    <mt-header fixed :title="$route.meta.title">
      <span slot="left" @click="goBack" v-show="flag">
        <mt-button icon="back">返回</mt-button>
      </span>
    </mt-header>
    <!--中间 路由 router-view 区域-->
    <transition>
      <keep-alive><!--需要缓存区-->
        <router-view v-if="$route.meta.keepAlive"></router-view>
      </keep-alive>
    </transition>
    <!--正常的访问走下面-->
    <transition>
        <router-view v-if="!$route.meta.keepAlive"></router-view>
    </transition>
    <!--底部 Tabbar 区域-->
    <nav class="mui-bar mui-bar-tab">
      <router-link class="mui-tab-z-item" to="/home">
        <span class="mui-icon mui-icon-home"></span>
        <span class="mui-tab-label">首页</span>
      </router-link>
      <router-link class="mui-tab-z-item" to="/member">
        <span class="mui-icon mui-icon-contact"></span>
        <span class="mui-tab-label">会员</span>
      </router-link>
      <router-link class="mui-tab-z-item" to="/shopcar">
        <span class="mui-icon mui-icon-extra mui-icon-extra-cart">
          <span id="badge" class="mui-badge">{{$store.getters.getAllCount}}</span>
        </span>
        <span class="mui-tab-label">购物车</span>
      </router-link>
      <router-link class="mui-tab-z-item" to="/search">
        <span class="mui-icon mui-icon-search"></span>
        <span class="mui-tab-label">搜索</span>
      </router-link>
    </nav>

   </div>
</template>

<script>
    export default{
        data(){
            return {
                flag:false
            }
        },
        created(){
            if(this.$route.path === '/home'){
                this.flag = false;
            }else {
                this.flag = true;
            }
        },
        watch:{
            '$route.path':function (newVal) {
                if (newVal === '/home'){
                    this.flag = false;
                }else{
                    this.flag = true;
                }
            }
        },
        methods: {
            //点击返回
            goBack(){
              this.$router.go(-1)
            }
        },
        computed: {},
        components: {}
    }

</script>


<style lang="scss" scoped="">
  .mint-header.is-fixed{
    z-index: 99;
  }
.app-container{
  padding-top: 40px;
  padding-bottom: 50px;
  overflow-x: hidden;
}
.v-enter{
  opacity: 0;
  transform: translateX(100%);
 }
.v-leave-to{
  opacity: 0;
  transform: translateX(-100%);
  position: absolute;
}
  .v-enter-active,
  .v-leave-active{
    transition: all 0.5s ease;
  }

  //改类名 解决Tabbar 点击无法切换问题
.mui-bar-tab .mui-tab-z-item.mui-active {
  color: #007aff;
}
.mui-bar-tab .mui-tab-z-item {
  display: table-cell;
  overflow: hidden;
  width: 1%;
  height: 50px;
  text-align: center;
  vertical-align: middle;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: #929292;
}
.mui-bar-tab .mui-tab-z-item .mui-icon {
  top: 3px;
  width: 24px;
  height: 24px;
  padding-top: 0;
  padding-bottom: 0;
}
.mui-bar-tab .mui-tab-z-item .mui-icon~.mui-tab-label {
  font-size: 11px;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}
</style>
